Complete Detach

Before you can complete the detach operation, you must terminate all usage of board resources (processors, memory, and I/O devices). DR terminates the use of memory, processors, and network devices automatically, but you must terminate the use of all non-network I/O devices.

To identify the components that are on the board to be detached, use drshow(1M), which is an option of the dr(1M) command, or use the display windows in Hostview (select the Configuration menu and then choose the Board pull-down menu and the Detach menu item). Another somewhat less informative way to identify the components is to use the prtdiag(1M) command on the domain.

After all board usage is terminated, you can perform the complete detach operation. If a device is still in use at this time, the detach operation fails and the device in use is reported. After you resolve the problem, you can perform the complete detach operation again.

If the board that you want to detach contains nonpageable memory, the complete detach operation may also fail due to quiescence problems, which are described in "System Quiescence Operation" in the Sun Enterprise 10000 DR Configuration Guide. After you resolve the quiescent problem, you can again execute the complete detach operation.

If you decide that you do not want to proceed with the detach operation at this time, you can abort the detach. The memory on a board is returned to normal usage and detached board devices are reattached. If the system configuration was modified to remove board usage (that is, file systems were unmounted and networks were unplumbed), you must undo these modifications and return the devices to normal operation.

After the board is successfully detached from the operating environment, it is isolated from the centerplane. In addition, the board list is automatically updated in the SSP domain_config(4) file.

You can now attach the board to another domain, power it off, and remove it by way of hot-swapping, leaving it in the system unattached, or reattaching it at a later time.